ALT+VALD – Validate the data structure and look for inconsistencies
ALT+RBLD – Force a data structure rebuild
To Reset the address Book

From the Options menu, type the following (No ALT+ required)
RSET – Will prompt to erase & reload for a reload of the Address book from the BES
(n.b. this will wipe all entries, but you can goto SIM Phone Book & copy entries back afterwards)

3. Option Menu Shortcut

Just type these keywords in the Option Menu without pressing the ALT key to do the following tasks.